Just like the original, StarCraft: Remastered features a full list of cheat codes. These allow you to give yourself a huge edge in single-player in a variety of ways. Though, they can't be used in multiplayer, so when you face real opponents you're going to have to rely on skill.

To enter a cheat code, simply press 'Enter' and then type in the cheat before pressing 'Enter' again. This is the same process for typing to other players in multiplayer, but it functions for cheats, too.